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--  专家坐堂  (http://foxtable.net/bbs/list.asp?boardid=2)
----  SQLTable Select语句  (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=101289)

--  作者：zoyong
--  发布时间：2017/5/27 17:10:00
--  SQLTable Select语句

SQLTable
Select语句   Select * F rom {cn_xjrjz} Where fdate Is Null

窗口AfterLoad
Dim y As Integer = Date.Today.Year
Dim m As Integer = Date.Today.Month
Dim dt1 As New Date(y, m, 1)
Dim dt2 As New Date(y, m, Date.DaysInMonth(y, m)) \'获取本月的最后一天
Dim Filter As String
Filter = "FDate >= \'" & dt1 & "\' And FDate <= \'" & dt2 & "\'" \'SQL表格式
DataTables("cn_xjrjz_Table1").LoadFilter = Filter \'设置加载条件
DataTables("cn_xjrjz_Table1").Load() \'加载数据

Dim tv As WinForm.TreeView \'树目录赋值
tv =e.Form.Controls("TreeView1")
tv.BuildTree("cn_xjrjz", "FYear|FPeriod")
Dim nd As WinForm.TreeNode
nd = tv.Nodes.Insert("显示全部",0)

窗口按键加载60天数数据
Dim dt As Date = Date.Today.AddDays(-60)
DataTables("cn_xjrjz").LoadFilter = "FDate > \'" & dt & "\'"
DataTables("cn_xjrjz").Load()
\'
Dim tv As WinForm.TreeView \'树目录赋值
tv =e.Form.Controls("TreeView1")
tv.BuildTree("cn_xjrjz", "fdate|FPeriod")
Dim nd As WinForm.TreeNode
nd = tv.Nodes.Insert("显示全部",0)

为什么上面的代码，只显示一张空表

--  作者：有点蓝
--  发布时间：2017/5/27 17:58:00
--

窗口AfterLoad
Dim y As Integer = Date.Today.Year
Dim m As Integer = Date.Today.Month
Dim dt1 As New Date(y, m, 1)
Dim dt2 As New Date(y, m, Date.DaysInMonth(y, m)) \'获取本月的最后一天
Dim Filter As String
Filter = "FDate >= \'" & dt1 & "\' And FDate <= \'" & dt2 & "\'" \'SQL表格式
DataTables("cn_xjrjz_Table1").LoadFilter = Filter \'设置加载条件
DataTables("cn_xjrjz_Table1").Load() \'加载数据

Dim tv As WinForm.TreeView \'树目录赋值
tv =e.Form.Controls("TreeView1")
tv.BuildTree(DataTables("cn_xjrjz_Table1"), "FYear|FPeriod")
Dim nd As WinForm.TreeNode
nd = tv.Nodes.Insert("显示全部",0)

窗口按键加载60天数数据
Dim dt As Date = Date.Today.AddDays(-60)
DataTables("cn_xjrjz_Table1").LoadFilter = "FDate > \'" & dt & "\'"
DataTables("cn_xjrjz_Table1").Load()
\'
Dim tv As WinForm.TreeView \'树目录赋值
tv =e.Form.Controls("TreeView1")
tv.BuildTree(DataTables("cn_xjrjz_Table1"), "fdate|FPeriod")
Dim nd As WinForm.TreeNode
nd = tv.Nodes.Insert("显示全部",0)